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Service bulletin TSB_TRA046_R3

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10226555
Published by NHTSA2022-12-06
Manufacturer's numberTSB_TRA046_R3
Manufacturer's date2022-11-18
NHTSA componentPOWER TRAIN

NHTSA's summary

TECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced, refer to applicable vehicles in the chart starting on page 2.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline

Vehicles listed
KIA CADENZA2014, 2015, 2016, 2017, 2018, 2019, 2020
KIA CARNIVAL2021
KIA CARNIVAL2022, 2023
KIA EV62022, 2023
KIA FORTE2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
KIA FORTE KOUP2010, 2011, 2012, 2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
KIA FORTE KOUP2016, 2017
KIA K52021, 2022, 2023
KIA K9002014
KIA K9002015, 2016, 2017, 2018, 2019, 2020
KIA NIRO2017, 2018, 2019, 2020, 2021, 2022, 2023
KIA NIRO EV2019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
KIA NIRO HYBRID2017 (the catalog's model; the bulletin names a series or trim of it)
KIA NIRO HYBRID2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
KIA NIRO PHEV2017, 2018, 2019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
KIA OPTIMA2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
KIA OPTIMA HYBRID2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
KIA RIO2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
KIA SEDONA2011, 2012
KIA SEDONA2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
KIA SELTOS2021, 2022, 2023
KIA SORENTO2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
KIA SORENTO HYBRID2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
KIA SORENTO PHEV2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
KIA SOUL2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
KIA SOUL EV2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
KIA SPORTAGE2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
KIA SPORTAGE HYBRID2023 (the catalog's model; the bulletin names a series or trim of it)
KIA SPORTAGE PHEV2023 (the catalog's model; the bulletin names a series or trim of it)
KIA STINGER2018, 2019, 2020, 2021, 2022, 2023
KIA TELLURIDE2020, 2021, 2022, 2023
KIA redundant NIRO2018

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
24V2710002024-04-16. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT
20241872024-03-22. Powertrain
24V2140002024-03-20. POWER TRAIN:DRIVELINE:DRIVESHAFT
20240542024-01-31. Powertrain
24V0570002024-01-31. POWER TRAIN:DRIVELINE:DRIVESHAFT
20235822023-10-27. Powertrain
23V7240002023-10-26. POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL); ELECTRICAL SYSTEM:SOFTWARE
20234232023-08-01. Powertrain
20234212023-08-01. Powertrain
23V5340002023-07-31. POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:CLUTCHES/BANDS:ACTUATORS/SOLENOIDS

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
TSB_CHA129_R12026-09-30. Service bulletin. TECHNICAL SERVICE BULLETIN: AWD COUPLER NOISE/VIBRATION LOGIC IMPROVEMENT (Revision 1) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information to upgrade the 4-Wheel Drive ‘4WD’ system software on some 2020-2025MY Telluride (ON) vehicles produced from January 08, 2019 through December 17, 2025. The affected vehicles may exhibit a noise and/or a vibration, shudder, jerking, binding, or chattering sensation while turning at low speeds (10MPH – 15MPH). This concern may be caused by decreased oil friction within AWD coupling due to continuous vehicle operation in harsh conditions (high/low ambient temperatures, extended duration/distance driving).
TSB_CHA128_CLSD2026-05-23. Service bulletin. TECHNICAL SERVICE BULLETIN: 4WD COUPLING NOISE/VIBRATION LOGIC IMPROVEMENT) - CLOSED & SUPERSEDED BY CHA129 - This bulletin is now closed and superseded by CHA129. This bulletin provides information to upgrade the 4-Wheel Drive ‘4WD’ system software on certain 2020-2022MY Telluride (ON) vehicles produced from January 09, 2019 through September 01, 2022. The affected vehicles may exhibit a noise and/or a vibration, shudder, jerking, binding, or chattering while turning at low speeds (10MPH – 15MPH) located from the 4WD coupling caused by a decrease in the oil friction of the 4WD coupling due to continuous vehicle operation in harsh conditions (high/low ambient temperatures, long time/distance traveling).
TSB_CHA1292026-05-23. Service bulletin. TECHNICAL SERVICE BULLETIN: AWD COUPLER NOISE/VIBRATION LOGIC IMPROVEMENT - This bulletin provides information to upgrade the 4-Wheel Drive ‘4WD’ system software on some 2020-2025MY Telluride (ON) vehicles produced from January 08, 2019 through December 17, 2025. The affected vehicles may exhibit a noise and/or a vibration, shudder, jerking, binding, or chattering sensation while turning at low speeds (10MPH – 15MPH). This concern may be caused by decreased oil friction within AWD coupling due to continuous vehicle operation in harsh conditions (high/low ambient temperatures, extended duration / distance driving).
SC199_OWNR_SP2_32026-02-25. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER RENOTIFICATION (SC199 FL301) - This document is the owner renotification advising that Kia is conducting Voluntary Service Campaign to update the software programming on the Transmission Control Module (TCM) and, if necessary, replace the Intelligent Variable Transmission (IVT) on certain 2021 MY Seltos vehicles.
SC199_OWNR_SK3_32026-02-25. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER RENOTIFICATION (SC199 FL301) - This document is the owner renotification advising that Kia is conducting Voluntary Service Campaign to update the software programming on the Transmission Control Module (TCM) and, if necessary, replace the Intelligent Variable Transmission (IVT) on certain 2020-2021 MY Soul vehicles.
SC199_OWNR_BD_32026-02-25. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER RENOTIFICATION (SC199 FL301) - This document is the owner renotification advising that Kia is conducting Voluntary Service Campaign to update the software programming on the Transmission Control Module (TCM) and, if necessary, replace the Intelligent Variable Transmission (IVT) on certain 2019-2020 MY Forte vehicles.
SC345Z_TSB2025-10-17. Service bulletin. TECHNICAL SERVICE BULLETIN: SUBSEQUENT REPAIR ACTION: FRONT MOTOR REDUCTION GEAR ASSEMBLY REPLACEMENT (SC345Z) - This bulletin provides information regarding grinding or whining noise coming from the front motor reduction gear assembly after replacing the oil under SC345 (published in August 2025) on certain 2023-2024MY Niro EV (SG2 EV) vehicles produced from December 12, 2022 through February 7, 2024 and EV6 (CV) vehicles produced from December 14, 2022 through February 22, 2024. In rare cases, the front motor reduction gear assembly may exhibit noise after having the oil replaced.
TSB_TRA1122025-09-12. Service bulletin. TECHNICAL SERVICE BULLETIN: TRANSAXLE ASSEMBLY REPLACEMENT & HCU LOGIC IMPROVEMENT - This bulletin provides information to replace the transaxle assembly and upgrade the Hybrid Control Unit Low-Voltage DC Converter (HCULDC) software on some 2022-2024MY Sorento Plug-In Hybrid (MQ4 PHEV) vehicles equipped with a 1.6L T-GDI engine and All-Wheel Drive (AWD), produced from June 29, 2021 through January 10, 2024. Some vehicles may experience an illuminated Malfunction Indicator Lamp (MIL) with DTC P0C4E00 stored, accompanied by a rough transition when the vehicle switches between EV and HEV motive power.
SC345_TSB2025-09-02. Service bulletin. TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN FRONT MOTOR REDUCTION GEAR OIL REPLACEMENT (SC345) - This bulletin provides information to replace the front motor reduction gear assembly gear oil on certain 2023-2024MY Niro EV (SG2 EV) vehicles produced from December 12, 2022 through February 7, 2024 and EV6 (CV) vehicles produced from December 14, 2022 through February 22, 2024. During the production of the subject vehicles, the amount of gear oil in the front motor and reduction gear assembly may have been filled below factory specification. If the gear oil level is lower than Kia’s factory specifications, the subject vehicles may eventually produce a grinding noise or whining noise from the front of the vehicle while driving.
SC345_QA2025-08-20. Service campaign. VOLUNTARY SERVICE CAMPAIGN: QUESTION AND ANSWER (SC345) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Service Campaign SC.